SG147894G - A method of, and an apparatus for, retracting the head and braking the drive motor of record disk file - Google Patents

A method of, and an apparatus for, retracting the head and braking the drive motor of record disk file

Info

Publication number
SG147894G
SG147894G SG147894A SG147894A SG147894G SG 147894 G SG147894 G SG 147894G SG 147894 A SG147894 A SG 147894A SG 147894 A SG147894 A SG 147894A SG 147894 G SG147894 G SG 147894G
Authority
SG
Singapore
Prior art keywords
retracting
braking
head
drive motor
disk file
Prior art date
Application number
SG147894A
Other languages
English (en)
Inventor
Charles Christian Hanson
Michael Joseph Ross
Original Assignee
Ibm
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US07/079,302 priority Critical patent/US4831469A/en
Priority to JP63122236A priority patent/JPH0831238B2/ja
Priority to DE88306533T priority patent/DE3884092T2/de
Priority to EP88306533A priority patent/EP0301737B1/en
Application filed by Ibm filed Critical Ibm
Priority to SG147894A priority patent/SG147894G/en
Publication of SG147894G publication Critical patent/SG147894G/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/22—Brakes other than speed-regulating brakes
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/12—Raising and lowering; Back-spacing or forward-spacing along track; Returning to starting position otherwise than during transducing operation
SG147894A 1987-07-29 1994-10-13 A method of, and an apparatus for, retracting the head and braking the drive motor of record disk file SG147894G (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US07/079,302 US4831469A (en) 1987-07-29 1987-07-29 Disk drive head retract and motor braking method and apparatus
JP63122236A JPH0831238B2 (ja) 1987-07-29 1988-05-20 電力遮断時におけるディスク駆動機構の制御装置
DE88306533T DE3884092T2 (de) 1987-07-29 1988-07-18 Verfahren und Vorrichtung zum Abheben des Wandlers und Bremsen des Antriebsmotors eines Aufzeichnungsplattenstapels.
EP88306533A EP0301737B1 (en) 1987-07-29 1988-07-18 A method of, and an apparatus for, retracting the head and braking the drive motor of a record disk file
SG147894A SG147894G (en) 1987-07-29 1994-10-13 A method of, and an apparatus for, retracting the head and braking the drive motor of record disk file

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/079,302 US4831469A (en) 1987-07-29 1987-07-29 Disk drive head retract and motor braking method and apparatus
SG147894A SG147894G (en) 1987-07-29 1994-10-13 A method of, and an apparatus for, retracting the head and braking the drive motor of record disk file

Publications (1)

Publication Number Publication Date
SG147894G true SG147894G (en) 1995-03-17

Family

ID=26664418

Family Applications (1)

Application Number Title Priority Date Filing Date
SG147894A SG147894G (en) 1987-07-29 1994-10-13 A method of, and an apparatus for, retracting the head and braking the drive motor of record disk file

Country Status (5)

Country Link
US (1) US4831469A (ja)
EP (1) EP0301737B1 (ja)
JP (1) JPH0831238B2 (ja)
DE (1) DE3884092T2 (ja)
SG (1) SG147894G (ja)

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US5889629A (en) * 1996-06-27 1999-03-30 Western Digital Corporation Method and apparatus for controlling disk drive head parking during power interruption
JP3277485B2 (ja) * 1996-12-02 2002-04-22 株式会社山武 電動アクチュエータ
US6548973B1 (en) * 1997-01-15 2003-04-15 Texas Instruments Incorporated Method and apparatus for braking a polyphase DC motor
US6188540B1 (en) * 1997-09-02 2001-02-13 Seagate Technology Llc System, method, and device for a regenerative constant velocity park for voice coil motor
US6204629B1 (en) * 1997-11-21 2001-03-20 Texas Instruments Incorporated Method and apparatus for accurately measuring a back-emf voltage on an actuator coil
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US6566832B2 (en) 1999-06-02 2003-05-20 Maxtor Corporation Method and apparatus for parking a read/write head during power interruptions by dynamic sequencing
US7633702B1 (en) * 2000-03-31 2009-12-15 Seagate Technology Llc Method and apparatus for powering voice coil motor retract circuit while braking spindle
US6859340B2 (en) 2001-03-09 2005-02-22 Seagate Technology Llc Method and device for retracting an actuator
US7005817B2 (en) * 2001-12-21 2006-02-28 Seagate Technology Llc Energy conserving disc drive
US7122988B2 (en) * 2002-09-13 2006-10-17 Tokyo Electron Limited Rotation drive device and rotation drive method
US7309967B2 (en) * 2004-03-31 2007-12-18 Hitachi Global Storage Technologies Netherlands B.V. Motor drive circuitry with regenerative braking for disk drive
JP4421485B2 (ja) * 2005-01-25 2010-02-24 株式会社東芝 電源遮断時におけるヘッドリトラクト方法及び同方法を適用するディスク記憶装置
US20070026093A1 (en) * 2005-07-26 2007-02-01 Keven Coates Apparatus and method for energy recovery from a spinning device
US7274529B2 (en) * 2006-02-10 2007-09-25 Hitachi Global Storage Technologies Netherlands B.V. Disk drive with adaptive actuator braking upon unexpected power loss
JP5549119B2 (ja) * 2009-05-31 2014-07-16 日本テキサス・インスツルメンツ株式会社 ディスク駆動装置
JP2010288425A (ja) * 2009-06-15 2010-12-24 Texas Instr Japan Ltd モータ制御装置及びディスク駆動装置
US8593752B2 (en) 2010-10-08 2013-11-26 HGST Netherlands B.V. Pulse power during a shut down in a hard disk drive
US9614465B2 (en) 2011-07-26 2017-04-04 Moog Inc. Electric motor clamping system
US9114536B2 (en) * 2012-04-13 2015-08-25 Rethink Robotics, Inc. Electronic emergency-stop braking circuit for robotic arms
EP2846458B1 (en) * 2013-09-10 2021-03-24 ams AG Motor position sensor device
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Also Published As

Publication number Publication date
EP0301737B1 (en) 1993-09-15
EP0301737A2 (en) 1989-02-01
JPH0831238B2 (ja) 1996-03-27
US4831469A (en) 1989-05-16
DE3884092D1 (de) 1993-10-21
JPH01119959A (ja) 1989-05-12
DE3884092T2 (de) 1994-04-21
EP0301737A3 (en) 1989-12-20

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